License Renewal

Exelon Nuclear submitted a license renewal application for Limerick Generating Station to the U.S. Nuclear Regulatory Commission (NRC) because we are committed to producing clean, safe and reliable energy for southeastern Pennsylvania homes and businesses well into the future.

Nuclear energy plants in the United States are licensed to operate for 40 years. The 40-year license term reflects the amortization period generally used by electric utility companies for large capital investments. The Atomic Energy Act of 1954 permits nuclear plants to renew their operating licenses. Learn more about the NRC license renewal process.

Limerick Unit 1’s original license continues through Oct. 26, 2024 and Unit 2’s license continues through June 22, 2029. With license renewal, Limerick Generating Station Unit 1 and Unit 2 will be able to produce clean, low-cost energy until 2044 and 2049.

A Clean Energy Source

Limerick Generating Station is a clean energy source in Pennsylvania, producing enough electricity to power two million homes each year without producing greenhouse gas emissions during its operations.

A Safe Energy Source

Limerick Generating Station invests in its equipment and people to ensure safe plant operations. Like all nuclear energy plants, Limerick is subject to a rigorous program of NRC oversight and inspection of Limerick's preventive and corrective maintenance, equipment replacement and extensive equipment testing programs. These programs ensure nuclear plant equipment continue to meet safety standards, no matter how long the plant has been operating.

A Reliable Energy Source

Limerick Generating Station is an always-on, stable source of electricity. Reliability can be measured by capacity factor, which is the amount of electricity actually produced compared with how much electricity would be produced if the plant operated at full capacity, 100 percent of the time. Limerick’s average combined capacity factor was 94.4 percent in 2010, higher than the U.S. nuclear industry's average of 91.2 percent.